John f



'-iuited giedre @sind Gettin. y

JOI-IN F. -MALLINOKRODT OF ST. LOUIS, MISSOURI.

Letters Patent No. 92,625, dated July 13, 1869.

BRIcK-MAGHINE.

The Schedule referred to in these Letters Patent and makng-part of the same.

To all whom it may concern This invention relates to machines for mouldingv bricks and similar building-materials; and

The nature of said invention is, first, in the arrangement and operation of the devicesv to cause the clay to be fed out intermittently between rollers and proper guides; secondly, in the construction and arrangement of the cutter and conveyer-device operating to cut off the clay and tlnow the same into the moulds.

To enable those herein skilled to make and use my said invention,'I will now more fully describe the detail construction and operation of my said improved machine as it will usually be applied to form bricks, such as are ordinarily applied for building-purposes, referring herein to the accompanying Figure l as a sectional elevation; to

Figure 2,. as a side elevation; to

Figure 3, as a top plan.

I support the operating-devices of my said machine upon a suitable frame, A, constructed of wood or castiron.

The power-shaft B is supported in said frame, and connects with an exterior power-source in any manner lsilal.

Said shaft carries the driving-pinion b, operating the spun-wheel C, the shape whereof is also held in the frame A.

From said wheel C, motion is 4'transmitted to thev feed-rollers D, which are placed on the top of the frame A, rotating on journals d resting in proper bearings df Directly over said rollers D, I place the feed-hopper` E, into which clay (or similar material) previously tempered is put, and from which the clay passes down between the rollers D.

On each end of the hopper E, I arrange sand-boxes F, which. permit sand to reach the surface of the rollers D, and thus properly prepare them for contactl with the clay. n,

The rollers D have collar-ridges, d2, so as to form two or more bars of clay; and the distance between the contiguous ridges is arranged somewhat smaller than the length of mould, while the rollers D'are gaugedio such a distance or clearance that the thickness of the clay bar will be lsomewhat greater than the height of the mould. l

The clay, as it leaves the rollers D, passes down between the guides G, and when a sufficient quantity thereof has been forced into propel' position, the ilier H cuts oi the required quantity and carries it radiallyv In order that the rollers D may deliver` the clay in su'eh quantity, and at such times, below the guides G, as it is required for action of the iiier H, I operate the rollers D by studs or pins, d, on the ends of one of said rollers, these being carried forward by the carrier-tappets c1 on the gear-wheel C. Then the rollers D are` connected, by spur-wheels (1*, to communicate the motion from one to the other.

The iiier H is secured to the shaft h, which rests on bearings in the frame A.

As has before been stated, said flier cuts off the requisite volume of clay, and has for this purpose the head-board h1, which carries the ribs h2. Said headboard is of proper size to cut ofi' bars of clay somewhat less in width `than the mould,"aud in order to insure the retention of the clay ou said head-board, one or more of said ribs, h2, are secured thereon.

` To give the flier the movement reqnired,I.arrange ou the disk of the lgear-wheel C, the cam-groove (usually heart-shaped) c2. This actuates the roller orpin k of the slotted rod K, the same being guided by its slot 7d 011 the shaft c.

Said rod K is thus raised and lowered, and, by the rack k thereon, turns the pinion h on the Hier-shaft h, thus moving the ier.

It is preferable to give the flier H an accelerated motionafter it has cut the clay'from the bar thereof under the guides G, so as to throw the clay with greater momentum into the mould I. Y

This I accomplish bythe heart-shaped slot or groove ci, the curvature thereof being Varied in departure from the centre of the shaft c in accordance with the velocity required.

The moulds I are of the usual form, as in hand brick-making, and they are placed on the tables I in proper position to receive the clay as it is thrown from the iiier-board; and as the clay volumes upon the board h1 are of slightly less length and slightly less width than the mould, the clay will thus be readily entered therein, and'owing to the force of the proj ection, the clay will be spread out and properly till the mould, as required. At the same time, owing to the greater height of the clay volume than the height of the mould, the indentations caused by the ribs h2 of the flier-board will not effect the proper shape of the body of clay as filling the mould.

In order that the mould may be moved oif from the position occupied in filling same on thetable I', and

that the superiiuous clay may be out off, I arrange the vibrating levers L on a shaft, l. Said levers have the connecting-lever l1, which, at its end, has the inclined face F. In order to throw the levers L forward by turning the shaft l, the pins l5 on the rollers D, in the rotation hereof, act against the inclined face Z oi' the lever Z1, thus accomplishing the forward motion required.

The return motion of the levers aibresaid'is induced by a weight, l, on the shaft l, or by a proper spring.

As the mould is thus moved forward, it passes under the stretched wire M, by which the superfluous clay is severed, and the mould then reaches the inclined step N, and lands thereon, as indicated by red lines in the fig. 1, the superfluous clay being thrown off (in the latter movement tothe step N) into a proper receiver.

The platform N may be hinged to the table I, so

that it may be raised up, and the room occupied be econornized during non-use of the said parts.

It will be more convenient to use a mould without a bottoni. The same will be constructed with proper handles :1t-the sides, so as to be carried with its narrow side downward to support the clay therein. Otherwise, the construction of the mould is in the usual manner. By the operation of the flier to throw the clay therein, the clay spreads rst at its lower or impact surface, and as it gradually fills the mould, the

air is permitted to escape, the process here used being,

in this, closely analogous to the hand processes in common use.

Having thus fully described my said invention,

lVhat I claim, is-

1. The pinion b, spur-wheel C, provided .with camgroove c2 and tappet c1, the rollers D, guide G, and hopper E, when provided with a sand-box, F, at each side, and all constructed, arranged, and operating suhsta-ntially as and for the purposes set forth;

2. The Hier H, with Vits head-board h1 and ribs h2, vibrating on the shaft h, and operating to throw the clay into the Inould, substantially as set forth.

i 3. The cam-groove c2, pin k, rod K, rack lc', when combined with the pinion In and Hier-shaft h, substantially as set forth.

In witness whereof, I have hereunto set my hand, in the presence of JOHN F. MALLINCKRODT.

W tnesses:

WILLIAM W. HERTHEL, ROBERT BURNS. 

